Enhanced optophysical properties of poly [(9, 9-di-n-octylfluorenyl-2, 7-diyl)-alt-(benzo [2, 1, 3] thiadiazol-4, 8-diyl)] via addition of TiO2 nanoparticles

Conference Paper

AlAsbahi, Siti Aishah Ahmad Fuzi1, Mohammad Hafizuddin Hj Jumali, and Bandar Ali Abdulqader . 2015

• رابط المنشور على الويب: http://scitation.aip.org/content/aip/proceeding/aipcp/10.1063/1.4931266
• اسم المؤتمر: AIP Publishing
• تاريخ المؤتمر: الأربعاء, نيسان (أبريل) 15, 2015

مستخلص المنشور

This work investigated the effect on 5 wt% addition of TiO2 nanoparticles (NPs) on the optical absorption characteristics of Poly[(9,9dinoctylfluorenyl2,7diyl)
alt(
benzo[2,1,3]thiadiazol4,8diyl)]
(F8BT). Both materials
were mixed using solution blending method and then spin coated onto ITOcoated
glass substrate at 1000 rpm for 30s. The optical properties of the nanocomposite were determined using UVVis
spectroscopy. Compares
to pristine film, the absorption peak of the nanocomposite film improved and shifted to longer wavelength indicating reduction in the direct and indirect band gaps. Better optophysical properties of F8BT/TiO2
nanocomposites is believed due to compatible band structures and efficient charge trapping effect displayed by the NPs.